An engineering student was walking across campus when another engineer rides up on a shiny new motorcycle.
"Where did you get such a great bike?", asked the first.

The second engineer replied, "Well, I was walking along yesterday minding my own business when a beautiful woman rode up on this bike. She threw the bike to the ground, took off all her clothes and said 'Take what you want.'"

The first engineer nodded approvingly, "Good choice; the clothes probably wouldn't have fit."